Door-operating mechanism for dump-cars.



R. G. TAYLOR.

DOOR OPERATING MECHANISM FOR DUMP CARS.

APYLIOATION FILED Nov. 1, 1911.

L18$fi$fi Patented Mar. 30, 1915.

3 SHEETS-SHEET 1.

THE NORRIS FcIER- C0,. PHOTO-LITHQ. WASHINGTON. D. c

R. G. TAYLOR.

DOOR OPERATING MECHANISM FOR DUMP CARS.

APPLICATION FILED NOV,1,1911.

Patented Mar. 30,1915.

3 SHEETSSHEET 2.

NORRIS FETERS $0., PHoraL/THa, WASHINGTON, l). C.

R. G. TAYLOR.

DOOR OPERATING MEOHANISM FOR. DUMP CARS.

APPLIUATION FILED NOV. 1, 1911.

Llfififififim Patented Mar. 30, 11915.

3 SHBETSSHEET 3.

M a @MMQWMQ THE NORRIS PETERS CO PHOT0-LITHo.. Wxar-IANUTUN. u.

ran salaries rants orrip 1t RALPH G. TAYLOR, OF DAVENPORT, IOW'A, ASSIGNOR, BY MESNE ASSIGNMENTS, TO THE BETTENDORF COMPANY, OF BETTENDORF, IOW'A, A CORPQBATION OF IOWA.

DOOR-OPERATING MECHANISM FOR DUMP-CARS.

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To all whom z't may concern Be it known that I, RALPH G. TAYLOR, a citizen of the United States of America, and resident of Davenport, Scott county, Iowa, have invented a certain new and useful Improvement in Door-Operating Mechanism for Dump-Cars, of which the following is a specification.

My invention relates to cars having a roof-shaped bottom section, and relates to improved means for locking the doors in closed position.

In looking devices it is desirable, in order to insure perfect safety, that the strain be removed from the chains which are employed for drawing the doors into closed position, and that the doors be held in locked position by means which are independent of the chains.

It is an object of my invention to provide a simple and improved locking means in which the door is held in looking position independently of the chains which are employed for drawing the door into closed position- This feature isvery important, as it insures a more perfect and efiicient looking of the doors. These and other objects of my invention will be more readily understood by reference to the accompanying drawings, in which similar reference characters refer to like parts, and in which Figure 1 is a transverse sectional view of a car embodying the features of my invention. Fig. 2 is a longitudinal sectional. view. Fig. 3 is a detail sectional View showing the door slightly open. Fig. 41 is a sectional view taken on the line 1 4: of Fig. 5. Fig. 5 is a sectional view taken on the line 5+5 of Fig. 1.

I have illustrated my invention in con nection with a car comprising the floor sections 6 and 7 and the side sections 8 and 9, to which side sections are hinged the doors 10 and 11. These doors are adapted to open by swinging outwardly in the manner well understood in the art. Mounted beneath the floor sections 6 and 7 there is an operating shaft 12 provided with a wheel about which passes the chain 13 which meshes with the gear wheel 14 mounted upon the shaft 15. This shaft is mounted within the slotted bracket 16 secured to the lower surface of the floor section 6, the slot 17 of this bracket being so positioned that the shaft 15 is free to move in a substantially vertical plane.

Specification of Letters Patent.

Application filed November 1, 1911.

Patented Mar. 30, 1915.

Serial No. 658,000.

The operating shaft 12 can be operated in any suitable manner, for instance,by means of the operating hand-wheel 18 and the connecting chain 19. Rigidly connected with the lower end of the door there is an arm 20 which is provided with a curved inner end portion 21. Mounted upon the shaft 15 there is a drum 22 provided with a spiral rib 23. Secured to this drum and passing between these spiral ribs there is a chain 2 1, the opposite end of which chain is connected with the door at a point such as 25. Adjacent to this winding drum 22 the shaft 15 is provided with a circular serrated portion with which portion of the drum the curved end of the arm 21 is adapted to engage. The inner surface of this arm is likewise serrated where it engages with this shaft, in order to give a proper and more eflicient engagement between these two parts.

In the operation, assuming the door to be in open position, the hand wheel 18 is rotated in a counter-clock-wise direction so as to revolve the drum 22 in a manner to wind up the chain 24:. The chain thus moves the door into closed position. As the arm 21 ad vances by this movement of the door, the curved end portion strikes the serrated portion of the shaft 15. The arm 21 being rigid with the door, and thus being prevented from moving downwardly, the continued movement forward of the arm 21 causes the shaft 15 to move upwardly in the manner shown in Fig. 3, so that this shaft passes over the end of this arm and drops into the curved socket, as shown in Fig. 4. In this position the arm 21 securely holds and locks the door 10 in closed position, and it is impossible to unlock the door without positively operating the shaft 15 by means of the operating wheel 18 in the reverse direction. This locking means is entirely independent of the chain which was employed for moving the door into closed position, and it is impossible for the door to become unlocked by any jars or jolts of the car. Instead of having the arm 21 connected rigidly with the door, it is obvious that this arm could be pivoted to the door, in which event it would be necessary to add a suitable bracket attached to the floor to prevent this arm from swinging downwardly when it comes into engagement with the serrated portion of the shaft 15. In order to lock the doors upon the opposite side of the car similar means are provided, it being necessary, however, to provide a crosschain l3 from the operating shaft 12 in order to secure the proper operation of the corresponding shaft 15*.

IVherever I have employed the term roof shaped it is to be understood that I employ this term to indicatev the shape of the floor construction clearly indicated in Fig. 1- that is, a construction in which the floor consists of two upwardly-inclined sections which meet at a point in the central portion of the floor. In ordinary practice this type of car floor is termed a roofed shaped floor.

While I have shown one specific form of my invention, it will be understood that I do not wish to limit myself to such a structure, but that many changes and substitutions will readily suggest themselves to those skilled in the art.

What I claim as my invention is:

1. In a dump car, a hinged door, an arm carried by said door, a shaft with which said arm engages, movablebodily only in a substantially vertical plane, and means for bringing said arm and shaft into position to lock said door in closed position.

2. In a dump car having a roof-shaped floor section, a door pivoted to one side of said car and adapted to swing outwardly, an arm connected to said door, a shaft mounted beneath said floor and adapted to move upwardly, means for moving said door into closed position, and means for bringing said arm and shaft into position to lock said door in closed position.

3. In a dump car having a roof-shaped floor section, a door hinged to one side of said car and adapted to swing outwardly, an arm connected with said door, a shaft mounted below said floor and adapted to move up' wardly, a winding drum upon said shaft, a chain connected with said door and said winding drum, means for operating said drum to wind up said shaft to move said door into closed position, and means whereby said arm engages said shaft to lock said door in closed position. 7

4. In a dump car, having a roof-shaped floor, a door hinged upon one side of said car and adapted to swing outwardly, a shaft mounted below said floor and adapted to move upwardly, an arm having a curved end portion carried by said door, means for moving said door into closed position to cause said arm to engage said shaft, means operated by engagement of said arm with said shaft to move said shaft upwardly, and over the end of said shaft, and into position whereby said arm and shaft lock said door in closed position.

5. In a dump car, a hinged door, a winding shaft and a connection therefrom to the door, means controlled by said shaft for locking said door in closed position, said shaft being movable bodily in a substantially vertical plane only to bring the same into locking position.

6. In a dump car, a hinged door, a winding shaft, bodily movable in a substantially vertical plane only and a connection extending therefrom to the door, whereby said door may be moved into closed position by the operation of said winding shaft.

7: In a dump car, a hinged door, a winding shaft mounted to reciprocate bodily movable in a substantially vertical plane only, and a connection extending therefrom to the door, whereby said door may be moved into closed position by the operation of said winding shaft.

8. In a dump car, a hinged door, a wind ing shaft bodily movable in a substantially vertical plane only, and a connection extending therefrom to the door, whereby said door may be moved into closed position by the operation of said winding shaft, and means controlled by said shaft for locking said door in closed position.

9. In a dump car, a hinged door, a winding shaft mounted to reciprocate bodily in a substantially vertical plane only, a connection extending therefrom to the door, whereby said door may be moved into closed position by the operation of said winding shaft, and means controlled by said shaft for locking said door in closed position.

10. In a dump car having a roof-shaped floor section, a door hinged at one side of said car and adapted to swing outwardly, an arm connected with said door, a winding shaft and a connection therefrom to the door, means for bringing said arm and said shaft into position to lock said door in closed position, said shaft being movable in a substantially vertical plane into locking position.

Signed by me at Davenport, Iowa, this 27th day of October 1911.

RALPH G. TAYLOR.

IVitnesses CHAS. S. VAMNER,

R. H. MALEBAN.

copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

Washington, D. G." 

